HK1232851B - Transport aid device and method for the use thereof - Google Patents

Description

Delivery assist device and method of use thereof

Technical Field

The present invention relates to a transport aid and a method for using the same. In particular, the present invention relates to a transport aid which is suitable for improving the transport of items transported on pallets, which are therefore also referred to below as pallet cargo.

Background Art

The entire contents of the priority applications DE 102014007905 and DE 102014014667 are incorporated into the present application by reference.

It is known and common practice that items that cannot be transported as bulk cargo, individual pieces, or the like can be transported on pallets, for example, in the loading space of trucks, containers, ships, and aircraft. In this context, the loading space should be utilized as optimally as possible, taking into account transportation costs. However, in practice, the available loading space cannot always be utilized optimally and therefore economically when transporting palletized cargo.

When such a pallet is placed, for example, on the floor of a truck structure (often also called a truck bed), the space above the pallet can no longer be used for transport. If the items on the pallet are very stable and shaped accordingly, a second pallet can be placed directly on top of them. However, with sensitive items, the loading capacity of the truck structure can only be used to a limited extent.

Summary of the Invention

The object of the present invention is to provide a device and a method for the economical transport of palletized goods.

According to the invention, this object is achieved by the teaching of the invention.

According to a first aspect of the present invention, a transport aid for at least two pallets is provided. The pallets have a loading bottom that is oriented approximately horizontally in the use position during transport. The transport aid comprises a first support device and a second support device for supporting at least one of the pallets. Both support devices comprise at least one connecting element for mechanically, in particular form-locking and/or force-locking connection of the respective support device to at least a first, in particular lower, pallet. The two support devices each have at least two supporting longitudinal beams that extend approximately in the vertical direction in the use position during transport. Each supporting longitudinal beam has a first end that constitutes its upper end during transport. At least two retaining elements are each connected to the first end of one of the at least two supporting longitudinal beams, in particular materially locked. Each retaining element is provided for retaining or supporting the second pallet spaced apart from the first pallet in the use position during transport of the two pallets.

The transport aid according to the invention can be used, in particular in the use position during transport:

- the weight of the second pallet is absorbed substantially completely by the supporting device, in particular by its retaining elements and supporting longitudinal beams, and/or

- holding or supporting the second pallet vertically spaced apart from the first pallet, and/or

- the second pallet is held or supported above the first pallet and the second pallet is not placed on the pallet load of the first pallet, and/or

- the space above the first pallet can be used for the second pallet, especially when the pallet load of the first pallet has an uneven or pressure-sensitive surface, and/or

- The space between the pallet load of the first pallet and the upper limit of the load space can be used for the second pallet.

The present invention solves the problem of insufficient space utilization by loading the pallet only at a relatively low height, thereby making better use of the available loading space.

The transport aid according to the invention can also advantageously prevent the pallet load of the first pallet from being damaged by the second pallet.

For the purposes of the present invention, a "pallet" is understood to mean a device that, in particular, carries what is referred to herein as palletized goods. To this end, a pallet has at least one preferably substantially rectangular loading floor, on which the palletized goods are placed for transport. The pallet also has at least one first recess for a so-called lifting device (lifting device recess), in particular, a first recess for a forklift fork, a lift truck, a crane, a stop for a transport cat, or a load-bearing device in a high-bay warehouse. The pallet has two opposing outer circumferential surfaces, which, in the transport position of use, are arranged substantially vertically, through which the at least one lifting device recess is accessible. Preferably, the pallet has at least two lifting device recesses, which are arranged at a predetermined angle relative to each other, particularly preferably at an angle of 90° or 0°. Spacers are preferably provided at predetermined locations on the loading floor, in particular for spacing the pallet's loading floor from the floor of a warehouse, a shelf, or a transport vehicle's cargo hold. Preferably, a spacer is provided at each of three, four, or more locations below the loading floor, thereby advantageously preventing unintended tilting of the loading floor. Particularly preferably, a spacer, in particular a prismatic shape, is attached below each corner of the loading base, which is in particular a rectangular design. Preferably, two spacers define a recess. Preferably, the bottom strip extends parallel to the loading base below a spacer, particularly preferably below several spacers. Preferably, the loading base is constructed in multiple parts, with several loading base strips; two loading base strips can form a gap, also referred to below as a recess. In the following, the loading base of the pallet, the loading base strips, the spacers, and the bottom strips are also referred to as the pallet body.

A "support device" within the meaning of the present invention is to be understood as a device that holds at least one connecting element and a retaining element at least at a predetermined distance from one another. The support device comprises two supporting longitudinal beams, each having a first and a second end, which are in particular intended to absorb forces, in particular weight forces, which act approximately along the longitudinal axis of the supporting longitudinal beams in the use position during transport. Preferably, the support device can be supported on the load space floor in the use position during transport, so that the weight of the second pallet can be supported by the load space floor. Preferably, the supporting longitudinal beams can absorb transverse forces and/or bending moments and/or torsional moments, in particular those generated by the weight of the second pallet. Preferably, the two supporting longitudinal beams merge into one another by means of at least one radius, thereby improving, in particular, the flow of forces between the supporting longitudinal beams. Preferably, the support device is designed to be approximately plate-shaped or as a base plate.

For the purposes of the present invention, a "connecting element" is understood to mean a device that connects the support device of the transport aid to the first pallet. In particular, in the transport position of use, the connecting element transmits forces and/or moments between the support device and the first pallet—preferably by means of a positive and/or non-positive fit. The connecting element advantageously establishes a force flow between the second pallet and the lifting device. Preferably, when transporting a unit comprising a first and a second pallet, for example, the connecting element transmits the weight of the second pallet to the lifting device, which is simultaneously loaded with the weight of the first pallet.

A "holding element" within the meaning of the present invention is understood to be a device that supports the second pallet. The holding element temporarily absorbs, in particular, the weight of the second pallet and directs this weight into the supporting device. Advantageously, the holding element at least temporarily absorbs transverse forces of the weight of the second pallet and transfers them to the supporting device. During transport, the holding element is connected to the supporting device, in particular to the first end of the supporting longitudinal beam, in particular in a materially bonded manner. In particular, during transport, the holding element is at a predetermined distance from the first end of the supporting device or the connecting element. The distance between the holding element and the connecting element is preferably related to the available loading space height. Preferably, the holding element comprises one of the aforementioned mechanical connecting means.

In the context of the present invention, a "mechanical connecting means" is understood to mean a means for mechanically, in particular detachably, connecting a first part of a conveying aid to a second part of the conveying aid. Preferably, the mechanical connecting means is designed as a hook, a bore, a hole, a blind hole, a notch, a projection, a hook, a pin, a bolt, a shaft, or a latching device.

Preferred embodiments of the conveying aid are described below, which can each be combined with one another, unless this is explicitly excluded.

According to a preferred embodiment, one or more supporting devices contain a material from the following group: wood, plastic, metal, cardboard, steel, light metal, aluminum, aluminum alloy, plastic, polypropylene, polyethylene. Preferably, at least one supporting device contains plastic, wherein the reinforcing fibers used are glass, carbon, mineral fibers, or wood fibers. Preferably, the component comprises a structure with cavities, particularly preferably a hardened foam and/or honeycomb structure. Preferably, the hardened foam and/or honeycomb structure is provided with at least one covering element, particularly preferably a thin-walled plate. Particularly preferably, at least one supporting device is designed as a so-called sandwich panel, wherein a foam layer or honeycomb layer extending approximately in a plane is connected on both sides to one of the covering plates, in particular, in a material-locking manner.

According to a preferred embodiment, the supporting longitudinal beam has a cross-section whose resistance moments about two bending axes arranged at right angles to each other are in a predetermined ratio. This prevents uneven biaxial bending when the supporting longitudinal beam is loaded with forces or bending moments transverse to the longitudinal axis. Advantageously, the stability of the transport aid constructed in this way is improved during transport. Preferably, the ratio of the resistance moments is between 2 and 0.5, more preferably between 1.5 and 0.75, and even more preferably between 1.1 and 0.9. At least one supporting longitudinal beam can have a rectangular, circular, oval, or trapezoidal cross-section. In particular, at least one supporting longitudinal beam is configured as a tube, a flat bar, a profiled bar, an I-shaped bracket, a T-shaped bracket, or an L-shaped bracket. Preferably, at least one leg of one of the supporting longitudinal beams has a notch, in particular for weight reduction or for detachable mechanical connection to one of the connecting strips described below.

According to a preferred embodiment, at least one first connecting projection of the connecting element extends approximately vertically and, in the operating position, approximately horizontally from the base plate of the support device, and the first connecting projection can be mechanically, in particular form-fittingly and/or force-fittingly engaged in a first recess of one of the pallets, in particular the first pallet, in particular the recess of the lifting device. Preferably, the first connecting projection has at least one reinforcing leg and a second leg that is bent relative to the reinforcing leg. The reinforcing leg of the first connecting projection can be supported on the load space floor, in particular during transport. The second leg of the first connecting projection can extend along the load floor and serve as a support for the lifting device when the transport aid is raised. Preferably, the reinforcing leg of the first connecting projection rests against one or more spacers of the pallet body, in particular in one of the lifting device recesses, during transport. Preferably, the second leg of the first connecting projection rests against the load floor, in particular in one of the lifting device recesses, during transport. Preferably, the first connecting projection consists of a bent sheet, in particular a metal sheet.

The first connecting tab preferably has two reinforcing legs, which are arranged approximately parallel to one another and spaced apart from one another by the second leg. The first connecting tab preferably has an approximately U-shaped cross-section, which is particularly preferably open toward the load space floor. The first connecting tab preferably consists of a twice-bent sheet metal, in particular a metal sheet. This advantageously improves the mechanical stability of the first connecting tab.

The connecting element preferably has two first connecting protrusions that can be engaged in different lifting device recesses and are spaced apart from one another for this purpose. This allows the weight of the second pallet to act on the lifting device via at least one of the retaining elements, one of the supporting longitudinal beams, and the second leg. The first connecting protrusions can advantageously improve the mechanical connection between the support device and the at least one pallet and/or can be used to transfer the weight of the second pallet to the load space floor.

According to a preferred embodiment, at least one or more of the connecting elements has a second connecting projection that is spaced apart vertically from the first connecting projection during transport. A section of the pallet, in particular the loading base of the first pallet, can be accommodated between the first and second connecting projections mechanically, in particular materially and/or forcefully. Preferably, the second connecting projection is arranged above the first connecting projection during transport. Preferably, the second connecting projection is dimensioned so that it can be inserted into a recess in the loading base or into the gap between two loading base strips. Preferably, the second connecting projection has a roughly L-shaped or U-shaped cross-section, the second leg of which extends roughly parallel to the second leg of the first connecting projection. Preferably, the second connecting projection consists of a twice-bent sheet, in particular a metal sheet. Preferably, the distance between the second legs of the first and second connecting projections is no greater than the thickness of the loading base plus manufacturing tolerances.

Preferably, at least one reinforcement leg rests against the outer circumference of one of the loading bottom bars during transport.The second connecting projection can advantageously improve the mechanical connection of the connecting element to the at least one pallet.

According to a preferred embodiment, at least one of the first connecting protrusions or at least one of the second connecting protrusions has at least one second leg, which can rest against the loading floor of one of the pallets, in particular the first pallet, and a reinforcement leg, which is bent relative to the second leg and serves to reinforce the connecting protrusion. The reinforcement leg of the first connecting protrusion can advantageously be supported on the loading space floor, in particular during transport. The second leg of the first connecting protrusion can advantageously extend along the loading floor, in particular during transport, and serve as a support for the lifting device when the transport aid is raised.

According to a preferred embodiment, at least one of the support devices has at least one or two base plates for supporting the first pallet. During transport, the at least one base plate is positioned at the lower end of the support device and below the first pallet. Preferably, the at least one base plate is formed by a bent edge of a base plate of the support device. The base plates can advantageously support the first pallet.

Preferably, at least one base plate is mechanically, in particular materially, connected to the reinforcing leg of the first connecting projection. In particular, the mechanical stability of the first connecting projection is advantageously improved when the transport aid is raised.

According to a preferred embodiment, at least one reinforcing rib extends from the base plate of at least one support device. The reinforcing rib is preferably oriented approximately vertically during transport. The reinforcing rib preferably extends along a section of one of the supporting longitudinal beams and/or extends from the base plate at an angle of approximately 90°. The reinforcing ribs of the support device are preferably formed by bending or raising the base plate. Preferably, at least one of the support devices has two reinforcing ribs extending from opposite ends of the base plate and oriented approximately parallel to each other. The reinforcing ribs advantageously serve to reinforce the support device or one of the supporting longitudinal beams.

According to a preferred embodiment, at least one or more of the retaining elements has a first support surface, oriented approximately horizontally during transport, for supporting the second pallet, and at least one support projection that is angled relative to the first support surface. The first support surface is preferably supported by one of the reinforcing ribs or a leg of an associated support longitudinal beam. The support projection serves to prevent undesired, in particular horizontal, movement of the second pallet relative to the retaining element or its first support surface during transport. To this end, the support projection extends over a portion of the first support surface along a boundary edge.

Preferably, the support projection forms an angle of between 90° and 135° with the first support surface. With the larger-angle support projection, placing the second tray can be simplified in that the second tray can be guided toward the first support surface by the support projection when placing it.

Preferably, at least one holding element is formed by a bent metal sheet, wherein the legs of the metal sheet form the first support surface and one of the support projections. Particularly preferably, the holding element constructed in this manner is connected to the first end of one of the supporting longitudinal beams in a material-locking manner.

Preferably, at least one or more retaining elements each have two supporting projections, which extend along different, in particular mutually perpendicular, boundary edges of the first support surface. Alternatively, a section of the first end can prevent an undesired movement of the second pallet relative to the support device or its first support surface by the support surface being at least 10 mm below the first end during transport.

Advantageously, the two support protrusions can guide the second pallet in both the X and Y directions when it is placed in the vertical direction or Z direction of the three-dimensional coordinate system. The two support protrusions can advantageously prevent undesired movement of the second pallet relative to the holding element or its first support surface in the X and Y directions.

According to a preferred embodiment, two retaining elements of the same support device are connected to each other by means of a second stabilizing bar, in particular by a material-locking connection. The second stabilizing bar preferably comprises the same material as the retaining elements. Preferably, the second stabilizing bar extends between the retaining elements or their first support surfaces, in particular to reduce space requirements. Preferably, the second stabilizing bar extends approximately horizontally during transport. The second stabilizing bar can advantageously improve the mechanical stability of the support device, in particular by preventing relative movement between the two retaining elements. The second stabilizing bar can advantageously serve as a handle and simplify handling of the support device, in particular when connecting the connecting element to the first pallet.

According to a preferred embodiment, the two supporting longitudinal beams of at least one of the support devices are connected to each other by means of a first stabilizing bar, in particular by a material-locking connection. Preferably, the first stabilizing bar comprises the same material as the base plate of the support device. Preferably, one of the first stabilizing bars extends in the plane of the base plate, in particular to reduce the space requirement, and connects the two supporting longitudinal beams. Preferably, one of the first stabilizing bars extends approximately horizontally adjacent to the first ends of the two supporting longitudinal beams during transport and connects the two first ends. Preferably, one of the first stabilizing bars extends approximately horizontally during transport and connects the two retaining elements of the support device. The first stabilizing bar can advantageously improve the mechanical stability of the support device, in particular prevent relative movement of the two supporting longitudinal beams with respect to each other. The first stabilizing bar can advantageously serve as a handle and simplify the handling of the support device, in particular when connecting the connecting element to the first pallet.

According to a preferred embodiment, the base plate of at least one of the support devices has one or more recesses, each of which can accommodate a connecting section of one of the retaining elements, one of the first stabilizing strips, one of the second stabilizing strips, one of the first connecting protrusions, or one of the second connecting protrusions (hereinafter collectively referred to as accessories). Preferably, one of the recesses and one of the connecting sections each form a plug-in connection. Preferably, the reinforcing leg and the second leg of at least one of the first and/or second connecting protrusions each have at least one of these connecting sections. Preferably, at least one of the retaining elements, in particular its supporting protrusions, has at least one or two of these connecting sections. This advantageously simplifies the positioning of the corresponding accessory relative to the base plate during the manufacture of one of the support devices, and in particular also the subsequent joining of the base plate and the accessory.

According to a preferred embodiment, the transport aid comprises at least one or more connecting bars for releasably mechanically connecting the two support devices. The connecting bars can apply a tensile force to the two support devices, which presses the two support devices against each other. The connecting bars are preferably designed as metal profiles, tie rods, ropes, chains, belts, or straps. The connecting bars preferably comprise at least one stop element for mechanically connecting to one of the support devices, one of the supporting longitudinal beams, or a reinforcing rib of the support device base plate. Particularly preferably, the stop element is designed as a hook, a hook and loop, a latching device, or a loop. The connecting bars are preferably designed to be elastic or adjustable in length.

The connecting strip is particularly preferably designed as a belt or strap, each end of which has a loop. Alternatively, the connecting strip is designed as a tie rod, each end of which has one of the mechanical connecting means, in particular a hook, a shackle, or a latching device. Alternatively, the connecting strip is designed as a rod, its second end has one of the mechanical connecting means, in particular a hook, a shackle, or a latching device, and its first end, opposite the second end, is designed for an articulated connection to one of the supporting devices, in particular one of the retaining elements. The connecting strip can advantageously improve the integration of the transport aid.

Preferably, the connecting strip is configured to detachably mechanically connect each of the supporting longitudinal beams of the two supporting devices. As an alternative, the connecting strip is configured to detachably mechanically connect each of the aforementioned stabilizing strips of the two supporting devices.

The connecting strip may advantageously improve the mechanical connection of the at least one connecting element to the first pallet.The connecting strip may advantageously prevent the first support device from moving relative to the second support device.

According to a preferred embodiment, at least one of the aforementioned reinforcing ribs of the base plate of one of the support devices has a mechanical connection element for mechanically, in particular detachably, connecting to the aforementioned connecting strip. This mechanical connection element can be connected to, in particular, one of the aforementioned stop elements of the connecting strip. The mechanical connection element is preferably designed as a hook, a projection, a hook, a pin, a bolt, a latching device, or a recess.

A preferred embodiment of the mechanical connection element is a pin, in particular cut out of the reinforcing rib, which extends approximately vertically during transport and can be connected, in particular, to a stop element of the connecting strip, in the form of a loop. The mechanical connection between the loop and the pin can advantageously be established and released in a very short time.

An alternative preferred embodiment of the mechanical connection means is to design the connection means as two protrusions, in particular cut out from the reinforcement rib, which extend approximately vertically during transport. One protrusion points downward during transport, while the other protrusion points upward, with a gap between the free ends of the protrusions. The stop means of the connecting strip, designed as a loop, can be passed through this gap and placed over the two protrusions. This advantageously allows for a more permanent connection of the connecting strip to the reinforcement rib or support device.

According to a preferred extension, the conveying aid has at least one connecting strip, a first end of which is hingedly connected to one of the retaining elements of the first support device, a second end of the connecting strip opposite the first end - which has one of the mechanical connecting devices - can be detachably mechanically connected to the first retaining element of the second support device, and the first retaining element of the second support device has a mechanical connecting device that is complementary to the mechanical connecting device of the connecting strip.

The first end of the connecting strip preferably has a shaft. The second end of the connecting strip preferably has a hook, particularly preferably a bow-shaped hook. The first retaining element preferably has a receiving element for the shaft of the connecting strip. The first retaining element preferably has a hook eye, a bore, a blind hole, a hole, or a recess. It is particularly preferred that the section of the first retaining element having the complementary mechanical connection means extends beyond the first support surface, thereby at least compensating for the thickness of the connecting strip.

Preferably, the connecting strip can be returned from a rest position, in which it extends approximately along one of the supporting longitudinal beams of the first support device, into a use position, in which the mechanical connection device is detachably connected to the first retaining element of the second support device and the connecting strip extends approximately horizontally.

Preferably, both the first and the second supporting device each have one of the connecting strips and a first retaining element.

In this preferred embodiment, the connection between the two supporting devices during transport or in the use position can be improved.

According to a preferred embodiment of the conveying aid, at least two supporting longitudinal beams of the first supporting device are connected to one another by means of a functional strip, in particular integrally, preferably one, two or more connecting strips are mechanically connectable to the functional strip.

The functional strip is preferably a profiled strip. It is preferably configured with a bent profile, particularly preferably with an L-shaped profile, a V-shaped profile, a T-shaped profile, an H-shaped profile, a double T-shaped profile, a C-shaped profile, a U-shaped profile, or two parallel legs. The functional strip and the base plate or the supporting longitudinal beam of the first supporting device preferably comprise materials that can be connected to each other in a materially bonded manner. The functional strip is preferably mechanically or materially connected to the two supporting longitudinal beams adjacent to their retaining elements.

The connecting strip, which is preferably designed as a belt or a strap, has at a first end one of the mechanical connecting means for the detachable mechanical connection to the second supporting device. The connecting strip is preferably designed as a strap.

The connecting strip that is preferably configured as band or belt is stored on the belt pulley that can be connected with function bar machinery, particularly preferably spring-loaded at least on part section.As an alternative, the connecting strip is configured as a tensioning belt, and its second end can be connected with function bar machinery.

Preferably, the at least one connecting strip designed as a belt or a strap can be moved back into a use position in which the connecting strip is detachably mechanically connected to the second supporting device.

In this preferred embodiment, the connection between the two supporting devices can be improved during transport or in the use position.

A preferred arrangement comprises a conveying aid according to the first aspect of the invention or a preferred embodiment thereof, and one or two pallets, wherein a first support device and a second support device are each mechanically connected to the first pallet via their connecting elements. The supporting longitudinal beams extend in the vertical direction, and the retaining elements form the upper ends of the supporting longitudinal beams. Preferably, the base plates of the first and second support devices rest against opposing outer circumferential surfaces of the first pallet. This arrangement can advantageously be used to load or place the second pallet without the palletized cargo of the first pallet bearing the load of the second pallet. The weight of the second pallet can advantageously be transferred directly to the floor of the storage location or the loading space floor via the support devices.

The second pallet is preferably held or supported at a vertical distance from the first pallet by means of at least one or more holding elements, in particular during transport. Advantageously, the pallet load of the first pallet is relieved from the load of the second pallet.

Preferably, the first support device and the second support device are mechanically connected by means of at least one or two connecting strips. In this case, the connecting strips can exert a force on the two support devices, which presses the support devices toward each other. This advantageously improves the connection of the transport aid, especially during transport.

The first support device preferably includes at least one first connecting protrusion extending approximately perpendicularly from a base plate of the first support device. The first connecting protrusion mechanically engages a first recess in the first tray or a recess in the lifting device. The base plate rests against a first outer circumference of the first tray over a portion of the first tray.

The second support device preferably rests over a portion of the second outer circumference of the first pallet, which is opposite the first outer circumference of the first pallet. This arrangement advantageously allows the loading or placement of the second pallet without the load on the first pallet being affected by the second pallet. The weight of the second pallet can advantageously be transferred directly to the floor of the storage location or loading space via the support device.

Preferably, one of the connecting strips is detachably connected to the first stabilizing strip of the first supporting device and the first stabilizing strip of the second supporting device during transportation. Advantageously, the connection of the transport aid can be improved during transportation.

Another preferred arrangement comprises a transport aid according to the first aspect of the invention or according to a preferred embodiment thereof and a pallet, wherein a first supporting device rests on the loading base of the pallet, a second supporting device rests on the first supporting device, and both supporting devices are removably mechanically connected to the pallet, preferably by at least one connecting strip configured as a belt. Preferably, both supporting devices are supported by the pallet in such a way that they do not extend beyond, or only extend only insignificantly beyond, the edge of the loading base. Advantageously, this arrangement makes it easier to transport, load, or store the transport aid.

According to a second aspect of the present invention, a method for using a delivery aid, in particular according to the first aspect of the present invention or a preferred development thereof, comprises the following steps:

S1: Mechanically connecting a connecting element of a first supporting device of the transport aid to a first pallet, so that two supporting longitudinal beams of the first supporting device extend approximately in a vertical direction during transport, and first ends of the supporting longitudinal beams are each connected to a retaining element, in particular in a material-locking manner.

S2: Mechanically connecting the connecting element of the second supporting device of the transport aid to the first pallet, so that the two supporting longitudinal beams of the second supporting device extend approximately in the vertical direction during transportation, and the first end of each supporting longitudinal beam is respectively connected to a retaining element, in particular in a material-locking manner,

S3: placing the second pallet on one or more holding elements, each of the holding elements being configured to hold or support at least the second pallet spaced apart from the first pallet in a vertical direction when the two pallets are transported,

Preferably, the following steps are additionally included:

S4 : Mechanically connecting a connecting strip of the transport aid to at least one or both supporting devices, so that, in particular, a movement of the first supporting device relative to the second supporting device is prevented before step S3 .

Preferably, step S4 is performed such that at least one of the connecting strips is connected both to a supporting longitudinal beam or a retaining element of the first supporting device and to a supporting longitudinal beam or a retaining element of the second supporting device (step S4 ′).

Particularly preferably step S4 is realized when tensioning the connecting strip configured as a tension band. As an alternative, step S4 can be realized when the connecting strip hingedly connected to the first supporting device and configured with a hook is pivoted and hooked into the mechanical connecting means of the second supporting device.

The transport aid according to the invention can be used in particular during transport

- the weight of the second pallet is absorbed substantially completely by the supporting device, in particular its retaining elements and supporting longitudinal beams, and/or

- holding or supporting a second pallet vertically spaced apart from the first pallet, and/or

- holding or supporting a second pallet above the first pallet without the second pallet being placed on the pallet load of the first pallet, and/or

- using the space above the first pallet for the second pallet, especially when the pallet load of the first pallet has an uneven or pressure-sensitive surface, and/or

- Use the space between the first pallet and the upper limit of the loading space for the second pallet.

The present invention solves the problem of insufficient space utilization by loading the pallet only at a relatively low height, thereby making better use of the available loading space.

The transport aid according to the invention can also advantageously prevent the pallet load of the first pallet from being damaged by the second pallet.

According to a third aspect of the present invention, a method for using a delivery aid, in particular according to the first aspect of the present invention or a preferred development thereof, comprises the following steps:

S8: placing the first supporting device of the conveying auxiliary device on the loading bottom of a pallet,

S9: placing the second supporting device of the transport aid onto the first supporting device, in particular in such a way that both supporting devices do not extend, or only insignificantly, beyond the boundary edge of the loading floor,

S10: Mechanically connect the support device to the pallet.

After step S10 , the transport aid can advantageously be easier to transport, load or store.

BRIEF DESCRIPTION OF THE DRAWINGS

Further advantages, features and application possibilities of the present invention will be apparent from the following description in conjunction with the accompanying drawings. In the drawings:

FIG1 schematically shows a partial view of a conveying aid including a preferred expansion scheme and an arrangement system of two pallets;

FIG2 schematically shows a perspective view of a support device of a conveying aid according to a preferred embodiment of the present invention;

FIG3 schematically shows a detail of the arrangement system of FIG1 ;

FIG4 schematically shows a partial view of another structure of a transport aid including a preferred expansion solution and a pallet;

FIG5 schematically shows a partial view of a delivery aid according to a preferred embodiment of the present invention;

FIG6 schematically shows a partial view of a delivery aid according to a preferred embodiment of the present invention;

FIG7 schematically shows a partial view of a delivery aid according to a preferred embodiment of the present invention;

FIG8 schematically shows a partial view of a delivery aid according to a preferred embodiment of the present invention;

FIG9 schematically shows a partial view of a base plate of a preferred embodiment of a conveying aid;

FIG. 10 schematically shows a partial view of a first connecting projection of a preferred embodiment of the delivery aid;

FIG. 11 schematically shows a partial view of a second connecting projection of a preferred embodiment of the delivery aid;

FIG. 12 schematically shows a partial view of a retaining element of a preferred embodiment of a delivery aid;

FIG. 13 schematically shows a partial view of a stabilizing strip of a delivery aid according to a preferred embodiment;

FIG14 schematically shows a partial view of a connecting strip of a preferred embodiment of a conveying aid;

FIG15 schematically illustrates a partial view of one of the support devices of the conveying aid according to a preferred embodiment;

FIG16 partially schematically illustrates a base plate of the support device of FIG15 ;

FIG17 partially schematically shows a retaining element of the support device of FIG15 ;

FIG18 partially schematically shows another retaining element of the support device of FIG15 ;

FIG19 schematically illustrates a partial view of a connecting strip of the delivery aid of the preferred embodiment of FIG15 ;

FIG20 partially schematically shows the transport aid of FIG15 with two trays;

FIG21 schematically illustrates a partial view of one of the support devices of another preferred embodiment of the conveying aid;

FIG22 partially schematically illustrates a base plate of the support device of FIG21 ;

FIG23 partially schematically illustrates a functional strip of the support device of FIG21 ;

FIG. 24 schematically shows a fragment of the transport aid from FIG. 21 with two trays.

DETAILED DESCRIPTION

FIG. 1 schematically shows a partial view of an arrangement comprising a preferred embodiment of a transport aid 1 and two pallets 20 , 25 .

The two support devices 2, 2a are connected to the lower first tray 20 and rest against the opposing outer circumferential surfaces 24, 24a. The two support devices 2, 2a are connected to each other by two connecting strips 33, 33a. The connecting strips 33, 33a stabilize the transport aid and counteract undesirable relative movement of the two support devices 2, 2a.

The second pallet 25 rests on the retaining elements 5, 16 of the supporting devices 2, 2a. The transport aid allows the first pallet 20 to be loaded with pressure-sensitive pallet goods and/or only partially loaded, while still allowing the space between the second pallet 25 arranged above and the upper limit of the loading space, such as the roof of a truck, to be used.

The following description is directed to the left support device 2 ; the right support device 2 a is constructed substantially in the same manner.

The connecting element 4 of the support device 2 includes two first connecting protrusions 8 and a plurality of second connecting protrusions 11, 11a, 11b, 11c, each of which extends approximately perpendicularly from the base plate 6. The first connecting protrusions 8, which have a generally U-shaped cross-section, engage in a lifting device recess 22 of the first pallet 20. Each of the first connecting protrusions 8 has a second leg 13, which extends within the corresponding lifting device recess 22 below the loading floor of the first pallet and can rest against the loading floor 21. The first connecting protrusions 8 each have two reinforcement legs 9, which can be supported on the loading space floor or the floor of the storage location, especially during transport. In addition, the reinforcement legs 9 reinforce the second legs 13 and thus the first connecting protrusion 8. The second connecting protrusions 11 each extend within a recess in the loading floor 21, in particular between two loading floor bars of the first pallet 20.

Reinforcing ribs 7, 7a extend from the base plate 6 over sections to reinforce the base plate 6, one of the supporting longitudinal beams 3, or the supporting device 2. A first reinforcing rib 7, 7a extends over sections along a substantially vertically oriented edge of the base plate 6 or the supporting device 2 during transport. The base plates 6 are each punched out of sheet metal.

The supporting longitudinal beams 3, 3a arranged approximately parallel to each other are connected and supported by stabilizing bars 18. In addition, the reinforcing ribs 7, 7a also reinforce the supporting longitudinal beams 3, 3a. The first end of the supporting longitudinal beams 3, 3a, ie the upper end during transportation, is connected to the retaining element 5.

Each holding element 5 has a first, approximately horizontally oriented support surface 17 and at least one second support projection 17a that is angled relative to the first support surface 17. The first support surface 17 serves to support the second tray 25 or to space the second tray 25 from the first tray 20. The support projection 17a serves to prevent undesired movement of the second tray 25 relative to the first support surface 17. Preferably, at least one support projection 17a forms an angle of between 90° and 135° with the first support surface 17 of the same holding element 5. The support projection 17a advantageously simplifies placement of the second tray 25 on the holding element 5.

The reinforcing ribs 7, 7a each have a mechanical connection means 19, 19a for detachable connection to one of the connecting strips 33 designed as a belt. One of the mechanical connection means is formed by a pin 19, in particular cut out of the reinforcing rib 7a, which extends approximately in the vertical direction during transport and can be connected, in particular, to a stop means of the connecting strip 33a, in the form of a loop 34. The loop 34 can preferably be detached when the transport aid is disassembled.

Another mechanical connection element is constructed as two protrusions 19a, 19b, specifically cut out of the reinforcing rib 7a, which extend approximately vertically during transport. One protrusion 19a points downward during transport, while the other protrusion 19b points upward. A gap exists between the free ends of the protrusions 19a, 19b. A stop element, constructed as a loop 34, of the connecting strip 33, constructed as a belt, passes through this gap and is placed over the two protrusions 19a, 19b.

FIG. 2 shows a partial schematic perspective view of a supporting device 2 of a preferred embodiment of the conveying aid 1 .

The reinforcing ribs 7, 7a extend at least in sections from opposite boundary edges of the metal base plate 6 of the support device 2. The free ends of the approximately vertically oriented supporting longitudinal beams 3, 3a and the retaining elements arranged there are not shown.

The connecting element 4 is constructed with two first connecting projections 8, 8a and four second connecting projections 11, 11a, 11b, 11c. Each connecting projection 8, 11 has a U-shaped cross-section. The first connecting projections 8, 8a, which can be inserted into the recess 22 of the lifting device, each have a second leg 10, 10a, oriented approximately horizontally, particularly during transport, on which the loading base 21 of the first pallet rests during transport. The first connecting projections 8, 8a have reinforcement legs 9, 9a, 9b, 9c, which reinforce the second leg 10, 10a and, in particular, support the loading base 21 of the first pallet during transport. The distance between the first connecting projection 8 and the second connecting projection 11 is dimensioned so that the loading base of the pallet (not shown) can be accommodated between the connecting projections 8, 11 with only a small gap. The connecting projections 8, 11 are welded to the base plate 6. Otherwise, the description of the preceding figures applies.

The mechanical connection means 19 is designed as a pin 19, in particular cut out of the reinforcing rib 7, which extends approximately in the vertical direction during transport and can be connected in particular to a stop means of the connecting strip 33a, in the form of a loop 34. The loop 34 can preferably be detached when the transport aid is disassembled. Otherwise, the description of the preceding figures applies.

The mechanical connection means are designed as two protrusions 19a and 19b, typically cut out of the reinforcing rib 7, which extend approximately vertically during transport. One protrusion 19a points downward during transport, while the other protrusion 19b points upward. A gap exists between the free ends of the protrusions 19a and 19b. The stop means of the connecting strip 33, designed as a loop 34, can be passed through this gap and placed over the two protrusions 19a and 19b. The loop 34 prevents the protrusions 19a and 19b, nor the gap between them, from being visible. Otherwise, the description of the preceding figures applies.

FIG. 3 schematically shows a detail of the arrangement of FIG. 1 .

A second pallet 25 is also placed on the holding element 5. The holding element 5 is connected to a first end of the supporting longitudinal beam 3. The stabilizing strip 18 extends from the supporting longitudinal beam 3 to an adjacent supporting longitudinal beam, not shown.

Support protrusions 17a extend from boundary edges of the first support surface 17 that are arranged substantially perpendicular to each other. The support protrusions 17a prevent the second tray 25 from undesirably moving relative to the first support surface 17. Otherwise, the description of the preceding figures applies.

FIG4 schematically shows a partial view of another arrangement of a transport aid and a pallet, including a preferred expansion solution. For storage or return transport, the transport aid 1 of FIG1 is placed on the loading base 21 of the pallet 20. The first support device 2 is placed on the pallet 20, and the second support device 2a is placed on the first support device 2. The two support devices 2, 2a are detachably connected to the pallet 20 mechanically, preferably by means of at least one connecting strip 33 configured as a belt. The two support devices 2, 2a only insignificantly protrude from the edge of the loading base 21. In this state, the transport aid 1 can be moved with minimal complexity and/or between two storage locations. Otherwise, the description of the aforementioned figures applies.

FIG. 5 schematically shows a portion of a preferred embodiment of a conveying aid in different views.

Reinforcement ribs 7, 7a extend at least partially from opposite edge portions of the metal base plate 6 of the support device 2 to reinforce the base plate 6 and thus the support device 2. The reinforcement ribs 7, 7a have mechanical connection means 19 corresponding to FIG2 . The connecting element 4 is configured with a first connecting projection 8 and a second connecting projection 11 corresponding to FIG2 . The first ends of the approximately parallel supporting longitudinal beams 3, 3a have retaining elements 5, 5a corresponding to FIG1 . A stabilizing bar 18 connects the supporting longitudinal beams 3, 3a, and another stabilizing bar 18a connects the retaining elements 5, 5a, in particular for mechanically stabilizing the support device 2. The connecting bar 33, configured as a tie rod, is provided for releasable mechanical connection to the stabilizing bar 18a. The description of the preceding figures applies otherwise.

FIG6 schematically shows a partial view of a preferred embodiment of a conveying aid. The differences from the embodiment of FIG5 are explained below. The reinforcing rib 7 extends over the entire length of the supporting longitudinal beam 3a and forms a leg of the supporting longitudinal beam 3a. The reinforcing rib 7 has a mechanical connection element 19 corresponding to FIG2 . The supporting longitudinal beam 3a has a plurality of recesses 15, 15a for releasable mechanical connection to one of the connecting strips 33. The connecting strip 33, designed as a tie rod, is used for releasable mechanical connection to the stabilizing strip 18a.

FIG. 7 schematically shows a portion of a preferred embodiment of a conveying aid in different views.

Reinforcement ribs 7, 7a extend at least partially from opposite edge portions of the metal base plate 6 of the support device 2 to reinforce the base plate 6 and thus the support device 2. The reinforcement ribs 7, 7a have mechanical connection means 19 corresponding to FIG2 . The connecting element 4 is configured as a first connecting projection 8 and a second connecting projection 11 corresponding to FIG2 . The first ends of the approximately parallel supporting longitudinal beams 3, 3a have retaining elements 5, 5a corresponding to FIG1 . A stabilizing bar 18 connects the supporting longitudinal beams 3, 3a, and another stabilizing bar 18a connects the retaining elements 5, 5a, in particular for mechanically stabilizing the support device 2. The connecting bar 33, configured as a tie rod, is provided for releasable mechanical connection to the stabilizing bar 18a. The description of the preceding figures applies otherwise.

FIG8 schematically illustrates a partial view of a preferred embodiment of a transport aid. The differences from the embodiment shown in FIG6 are explained below. The support device 2, or its supporting longitudinal beams 3a, has a base plate 14 that supports a first pallet (not shown) during transport. The base plate 14 is preferably connected to the reinforcement legs 9 in a material-locking manner, particularly to improve the mechanical stability of the connecting element 4. The connecting bar 33, designed as a tie rod, provides a removable mechanical connection to the stabilizing bar 18a.

FIG. 9 schematically shows a section of a base plate 6 of a preferred embodiment of the conveying aid in different views.

The reinforcing ribs 7, 7a extend over a section along the base plate 6. The first ends of the supporting longitudinal beams 3, 3a are connected to the retaining elements 5, 5a. The connecting element is not yet complete. The base plate 6 has a plurality of recesses 15 for later connection to the first and/or second connecting protrusions of the connecting element.

The reinforcing ribs 7, 7a each have a mechanical connecting means 19, 19a for detachable connection to one of the connecting strips 33. One of the mechanical connecting means is designed as a pin 19, in particular cut out of the reinforcing rib 7a, which extends approximately in the vertical direction during transport and can be connected in particular to a stop means of the connecting strip 33a, in the form of a loop 34. The loop 34 can preferably be detached when the transport aid is disassembled.

Another mechanical connection element is designed as two protrusions 19a, 19b, specifically cut out from the reinforcing rib 7a, which extend approximately vertically during transport. One protrusion 19a points downward during transport, while the other protrusion 19b points upward. A gap exists between the free ends of the protrusions 19a, 19b. The stop element of the connecting strip 33, designed as a loop 34, can be inserted into the gap and placed over the two protrusions 19a, 19b.

10 schematically shows a section of a first connecting projection 8 of a preferred embodiment of the conveying aid in different views. The first connecting projection 8 is provided for a subsequent materially bonded connection to a base plate.

The first connecting protrusion 8 has a second leg 10 which is supported by two reinforcing legs 9, 9a. The first connecting protrusion 8 is made of sheet metal. The reinforcing legs 9, 9a are made by bending the sheet metal.

Connecting sections 40, 40a, 40b extend from the legs 9, 10. The connecting sections are provided for mechanical connection to the recess 15 of the base plate 6 of FIG.

11 schematically shows a section of a second connecting projection 11 of a preferred embodiment of the conveying aid in different views. The second connecting projection 11 is provided for subsequent material-locking connection to the base plate 6 , for example, as shown in FIG.

The second connecting protrusion 11 has a second leg 13 supported by two reinforcing legs 12, 12a. The second connecting protrusion 11 is made of a metal plate. The reinforcing legs 12, 12a are made by bending the metal plate.

Connecting sections 40 , 40 a extend from the reinforcing legs 12 , 12 a and are provided for mechanical connection to the recess 15 of the base plate 6 , for example, as shown in FIG. 9 .

12 shows a partial schematic view of a retaining element 5 of a preferred embodiment of a conveying aid in different views. The retaining element 5 is provided for a subsequent integral connection to one of the supporting longitudinal beams.

The holding element 5 is made of bent sheet metal. The support projection 17a extends along a boundary edge of the support surface 17. Extending from the holding element 5 are connecting sections 40, 40a, which are provided for mechanical connection with the recess 15 of the base plate 6, for example, as shown in FIG.

FIG. 13 schematically shows a section of a stabilizing strip 18 of a preferred embodiment of a conveying aid in different views.

The stabilizing strip 18 is produced from a metal profile and is provided for subsequent connection, in particular by integral bonding, to the base plate 6 , for example, from FIG. 9 , or to two supporting longitudinal beams of the same supporting device.

The stabilizing strip 18 has a recess 15 for detachable mechanical connection to a connecting strip of the same conveying aid.

FIG. 14 schematically shows a section of a connecting strip 33 of a preferred embodiment of a conveying aid in different views.

The connecting strip 33 is made of a metal profile and is provided for being detachably mechanically connected to one of the stabilizing strips of the two supporting devices respectively afterwards. The connecting strip 33 has a recess on its end respectively, which is provided for being embedded in the recess of the stabilizing strip 18 of Figure 13 .

FIG. 15 schematically shows a section of one of the support devices of a preferred embodiment of the conveying aid in different views.

The transport aid has at least one connecting link 33, wherein a first end of the connecting link 33 is articulatedly connected to one of the holding elements 16 of the first support device 2 and has an axis 19b. The holding element 16 has a receiving element for the axis 19b of the connecting link 33. The second end of the connecting link 33, which has a hook 19, can be removably mechanically connected to a holding element of a second support device (not shown).

The first support device 2 also has a retaining element 5 for detachable mechanical connection to a connecting strip of a second support device (not shown). To this end, the retaining element 5 has a through-hole 19a in a section, wherein the section is formed by forming the remaining part of the retaining element 5, thereby at least compensating for the thickness of the connecting strip of the second support device (not shown).

The connecting strip 33 can be returned from the rest position, in which it extends approximately along one of the supporting longitudinal beams of the first support device 2, into the use position, in which the mechanical connection device is detachably connected to the first retaining element of the second support device and the connecting strip extends approximately horizontally.

The supporting longitudinal beams 3, 3a are connected to each other via a stabilizing strip 18. The retaining element 5 and the retaining element 16 are connected to different supporting longitudinal beams 3, 3a. The base plate 6 is connected to the first connecting tabs 8, 8a and the second connecting tab 11.

FIG16 schematically shows a partial view of the base plate of the support device of FIG15 . The base plate 3 is produced by cutting and forming and is prepared for connection with the retaining element and the connecting protrusion. Preferably, the base plate is made of aluminum. Preferably, the reinforcing ribs are produced by forming.

FIG. 17 schematically shows a fragment of the holding element 16 of the support device of FIG. 15 , which differs from the holding element of FIG. 12 in particular by a recess for one of the connecting strips.

Figure 18 schematically shows a partial view of another holding element 5 of the supporting device of Figure 15 , which differs from the holding element of Figure 12 in particular in the section provided with the through hole 19a .

Figure 19 schematically shows a section of a connecting strip 33 of a preferred embodiment of the conveying aid of Figure 15. The connecting strip 33 has a through-hole for the shaft at a first end and a hook 19 at a second end.

FIG20 schematically illustrates a partial view of the transport aid of FIG15 with two trays 20, 25. A first connecting bar 33 is articulatedly connected to the first support device 2, and a second connecting bar 33a is articulatedly connected to the second support device 2a. The connecting bars 33, 33a have not yet been brought into their operating position. However, the support devices 2, 2a are already connected to the lower tray 20 by means of their connecting elements or first connecting projections 8, and the second tray 25 is placed on the retaining elements 5, 16.

In this preferred embodiment, the connection between the two supporting devices can be improved during transport or in the use position.

FIG. 21 schematically shows a fragment of one of the support devices 2 of a further preferred embodiment of a transport aid.

At least two supporting longitudinal beams 3, 3a of the supporting device 2 are connected to one another, in particular materially, by means of a functional strip 32. Preferably, one, two or more connecting strips (not shown) can be mechanically connected to the functional strip 32. The functional strip is designed with a U-shaped profile, which, in the operating position, is arranged below the retaining elements 5, 16. A belt roller or a tensioning belt can be fixed in the U-shaped profile.

Furthermore, the supporting longitudinal beams 3, 3a are connected to one another by means of one of the stabilizing strips 18. The supporting device 2 has two first connecting projections 8, 8a and a mechanical connecting means 19a for a connecting strip (not shown).

FIG. 22 schematically shows a fragment of the base plate 6 of the support device of FIG. 21 with reinforcement ribs 7 and mechanical connection means 19 a for connecting strips (not shown).

Figure 23 schematically shows a fragment of a functional strip 32 of the support device of Figure 21, which has a substantially U-shaped cross section. The functional strip 32 is provided for mechanical connection with two tensioning straps.

FIG24 schematically illustrates a partial view of the transport aid of FIG21 with two trays 20, 25. The support device 2, 2a is already connected to the lower tray 20 by means of its connecting element or first connecting projection 8, and the second tray 25 is placed on the retaining elements 5, 16. The connecting strips 33, 33a, each designed as a tensioning strap, are brought into their operating position, i.e., the first ends of the connecting strips 33, 33a are detachably mechanically connected to the respective other support device 2, 2a. For this purpose, the first ends of the connecting strips 33, 33a each have a mechanical connection element designed as a loop 34. The tensioning straps tighten and press the support devices 2, 2a against each other.

In this preferred embodiment, the connection between the two supporting devices can be improved during transport or in the use position.

Reference Signs List

1. Conveying auxiliary device

2.2a Support device

3.3a Supporting longitudinal beam of the supporting device

4 Connecting elements of the support device

5.16 Retaining elements of the support device

6. Base plate for supporting device

7 Reinforcement ribs of base plate

8 First connecting protrusion of the connecting element

9 Reinforcement leg of the first connecting protrusion

10 Second leg of the first connecting protrusion

11 Second connecting protrusion of the connecting element

12 Reinforcement leg of the second connecting protrusion

13 Second leg of the second connecting protrusion

14 bottom plate

15 notch

17 First support surface of the retaining element

17a Support protrusion of the holding element

18 Stability Bar

19 Mechanical connectors

20, 25 pallets, pallet bodies

21 Loading bottom of pallet

22 First notch, notch for lifting device of tray

23 Clearance in the loading bottom

24 The outer surface of the tray

32 Function Bar

33 Connecting strip

34 Stop device for connecting strip

35 Reinforcement for functional strips

40 connection section

Claims (16)

1. A conveying aid (1) for at least two pallets (20, 25), wherein the pallets (20, 25) have a loading bottom (21) that is generally horizontally oriented in a position of use during transport, the conveying aid comprising a first support (2) and a second support (2a) for supporting at least one of the pallets (20, 25), both of the support devices (2, 2a) comprising: - At least one connecting element (4) for mechanically connecting the first support device (2) or the second support device (2a) to the first tray (20); and - At least two supporting longitudinal beams (3, 3a) extending approximately vertically in the position of use during transport, each of the at least two supporting longitudinal beams having a first end which constitutes the upper end of the corresponding supporting longitudinal beam in the position of use during transport; - At least two retaining elements (5, 16) are connected to the first end of one of the two supporting longitudinal beams (3, 3a), wherein each of the retaining elements (5, 16) is configured to retain or support the second pallet (25) of the pallets (20) vertically spaced from the first pallet (20) in the use position when transporting the two pallets (20, 25), and at least one first connecting protrusion (8) of the connecting element (4) extends substantially orthogonally and substantially horizontally from the base plate (6) of the first support device (2) or the second support device (2a) in the use position. The first connecting protrusion has at least one reinforcing leg and a second leg bent relative to the reinforcing leg. The connecting element has two first connecting protrusions that can be inserted into different lifting device recesses and are spaced apart from each other. The first support device (2) and the second support device (2a) are respectively formed by a base plate (6). Two reinforcing ribs (7) extend from the opposite ends of the base plate (6) and are oriented substantially parallel to each other. 2. The conveying auxiliary device (1) according to claim 1, wherein the connecting element (4) has a second connecting protrusion (11) that is vertically spaced from the first connecting protrusion (8) in the use position during transport, wherein a section of a pallet (20, 25) can be mechanically accommodated between the first connecting protrusion (8) and the second connecting protrusion (11). 3. The conveying auxiliary device (1) according to claim 2, wherein at least one of the first connecting protrusion (8) or the second connecting protrusion (11) has at least one second leg (10, 13) and a reinforcing leg (9, 12) bent relative to the second leg (10, 13) for reinforcing the first connecting protrusion (8) or the second connecting protrusion (11), the second leg being able to abut against the loading bottom (21) of one of the pallets (20, 25). 4. The conveying auxiliary device (1) according to claim 1 or 2, wherein at least one of the retaining elements (5, 16) has a first support surface (17) for supporting the second pallet (25) and is generally horizontally oriented during transport, and at least one support protrusion (17a) bent relative to the first support surface (17). 5. The conveying auxiliary device (1) according to claim 1 or 2, wherein the two support beams (3, 3a) of at least one of the first support device (2) and the second support device (2a) are connected to each other by means of a first stabilizing bar (18). 6. The conveying auxiliary device (1) according to claim 1 or 2, wherein at least one connecting strip (33) is provided for detachably mechanically connecting the first support device (2) and the second support device (2a). 7. The conveying auxiliary device (1) according to claim 6, wherein one of the reinforcing ribs (7) of the base plate (6) has a mechanical connection device (19) for mechanical connection with one of the connecting strips (33). 8. The conveying auxiliary device (1) according to claim 7, wherein the first end of the connecting bar (33) is hingedly connected to one of the holding elements (5, 16) of the first support device (2), The second end of the connecting strip (33), opposite to the first end, can be detachably mechanically connected to the first retaining element (5, 16) of the second support device (2a), and the second end has one of the mechanical connecting devices (19). The first retaining element (5, 16) of the second support device (2a) has a mechanical connection device (19a) that is complementary to the mechanical connection device (19) of the connecting bar (33). 9. The conveying auxiliary device (1) according to claim 6, wherein the two support beams (3, 3a) of at least one of the first support device (2) and the second support device (2a) are connected to each other by means of a functional strip (32). 10. The conveying auxiliary device (1) according to claim 2, wherein a section of the first tray can be mechanically accommodated between the first connecting protrusion (8) and the second connecting protrusion (11). 11. The conveying auxiliary device (1) according to claim 9, wherein at least one of the connecting bars (33) is connectable to the functional bar (32). 12. An arrangement system comprising a conveying auxiliary device (1) according to any one of claims 1 to 11 and one or two pallets (20, 25), wherein the first support device (2) and the second support device (2a) are mechanically connected to the first pallet (20) by means of their connecting elements (4). 13. An arrangement system comprising the conveying auxiliary device (1) and pallets (20, 25) according to any one of claims 1 to 11, wherein, The first support device (2) rests against the loading bottom (21) of the pallet (20, 25). The second support device (2a) rests against the first support device (2), and The two support devices (2, 2a) are detachably mechanically connected to the pallets (20, 25). 14. A method for using the conveying auxiliary device (1) according to any one of claims 1 to 11, the method comprising the following steps: S1: The connecting element (4) of the first support device (2) of the conveying auxiliary device (1) is mechanically connected to the first pallet (20), such that at least two support longitudinal beams (3, 3a) of the first support device (2) extend approximately vertically in the position of use during transportation, wherein the first end of the support longitudinal beams (3, 3a) is respectively connected to a retaining element (5). S2: The connecting element (4b) of the second support device (2a) of the conveying auxiliary device (1) is mechanically connected to the first pallet (20), such that at least two support longitudinal beams (3b, 3c) of the second support device (2a) extend approximately vertically in their position of use during transport, wherein the first end of each support longitudinal beam (3b, 3c) is connected to a retaining element (5). S3: Place the second pallet (25) onto at least one of the retaining elements (5, 16), each of the retaining elements (5, 16) being configured to hold or support the second pallet (25) vertically spaced from the first pallet (20) in a position of use when transporting the two pallets (20, 25). 15. A method for using the conveying auxiliary device (1) according to any one of claims 1 to 11, the method comprising the following steps: S8: Place the first support device (2) of the conveying auxiliary device (1) against the loading bottom (21) of a tray (20, 25), S9: Place the second support device (2a) of the conveying auxiliary device (1) against the first support device (2). S10: Mechanically connect the first support device (2) and the second support device (2a) to the tray (20, 25). 16. The method according to claim 15, characterized in that the method includes step S9: placing the second support device (2a) of the conveying auxiliary device (1) against the first support device (2) such that the two support devices (20, 25) do not extend beyond or only not significantly extend beyond the boundary edge of the loading bottom (21).